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发明名称
Attachment for propellers
摘要
申请公布号
US2260786(A)
申请公布日期
1941.10.28
申请号
US19400337700
申请日期
1940.05.28
申请人
MUHLENBRUCK ROY F
发明人
MUHLENBRUCK ROY F.
分类号
B64C11/00
主分类号
B64C11/00
代理机构
代理人
主权项
地址
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